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        <title>Online PDF Optimizer</title>
        <meta name="description" content="Free online PDF optimizer tool. It allows you to loslessly optimize PDF to reduce file size by stripping unnecessary meta data and applying compression, without affecting the quality. Batch process multiple files.">
        <meta property="og:url" content="/optimize">
        <meta property="og:title" content="Online PDF Optimizer">
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        <meta property="og:description" content="Free online PDF optimizer tool. It allows you to loslessly optimize PDF to reduce file size by stripping unnecessary meta data and applying compression, without affecting the quality. Batch process multiple files.">
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                <a id="logo" href="/">pdfresizer.com</a>
               
                <nav>
                    <ul id="menu">
                        <li>
                            <a href="/merge" title="Merge multiple PDF documents into one">Merge PDF</a>
                        </li>
                        <li>
                            <a href="/split" title="Split PDF into individual pages">Split PDF</a>
                        </li>
                        <li>
                            <a href="/resize" title="Resize PDF resolution or paper size">Resize PDF</a>
                        </li>
                        <li>
                            <a href="/convert" title="Convert PDF to different format">Convert PDF</a>
                        </li>
                        <li>
                            <a href="/crop" title="Crop or extend PDF document margins">Crop PDF</a>
                        </li>
                        <li>
                            <a href="/rotate" title="Flip or rotate PDF document">Rotate PDF</a>
                        </li>
                        <li class="active">
                            <a href="/optimize" title="Optimize a PDF file to reduce file size">Optimize PDF</a>
                        </li>
                        <li>
                            <a href="/reorder-pages" title="Change the order of pages in PDF">Reorder PDF</a>
                        </li>
                        <li>
                            <a href="/delete-pages" title="Remove pages from PDF document">Delete pages</a>
                        </li>
                        <li>
                            <a href="/multipage" title="Arrange multiple pages per sheet (N-up)">N-UP</a>
                        </li>
                        <li>
                            <a href="/jpg-to-pdf" title="Convert images to PDF">JPG to PDF</a>
                        </li>
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            <div id="content">
               
                <div id="main">
                    <h1>Online PDF optimizer</h1>
                    <script>
                        var dr = 0;
                        function pdr() {
                            dr = 1
                        }
                        function ssb() {
                            dr && document.getElementById("ub").click()
                        }
                        function checkFS() {
                            if (window.FileReader && window.File && window.FileList && window.Blob) {
                                var e = document.getElementById("tf");
                                if (void 0 !== e.files[0] && e.files[0].size > 104857600)
                                    return alert("The file you are trying to upload is too large! Maximum file size is 100 MB"),
                                    !1
                            }
                            var i = document.getElementById("ub");
                            return i.value = "Uploading files...",
                            i.disabled = !0,
                            i.classList.add("inactive"),
                            !0
                        }
                    </script>
                    <form action="/optimize" class="uploader" onsubmit="return checkFS();" enctype="multipart/form-data" method="post">
                        <div class="input file">
                            <label for="tf">Choose, paste or drag files here</label>
                            <input type="file" name="data[Tools][files][]" multiple="multiple" id="tf" ondrop="pdr()" onchange="ssb()">
                        </div>
                        <p>
                            Maximum combined file size: 100MB, up to 500 files<br>
                            Supported types: PDF, DOC, DOCX, ODT, PPT, PPTX<br>(other files will be converted to PDF automatically)
                        </p>
                        <p>All files are automatically deleted 1 hour after upload.</p>
                        <div class="submit">
                            <input id="ub" class="action-button" type="submit" value="Upload files!">
                        </div>
                    </form>
                    <script>
                        const fileInput = document.getElementById("tf");
                        window.addEventListener("paste", e => {
                            e.clipboardData.files.length > 0 && (fileInput.files = e.clipboardData.files,
                            pdr(),
                            ssb())
                        }
                        );
                    </script>
                    <div class="c"></div>
            
                    <div id="tool-description">
                        <h2>Online PDF optimizer/compressor</h2>
                        <p>This page lets you optimize and compress PDF files to decrease file size, e.g. when you wish to save bandwidth or fit the file within e-mail attachment file size limits.
                        <p>With this tool, You can upload and optimize multiple files at the same time (batch processing).
                        <p>
                            PDF optimizer will not change the resolution of your files. If you need to further reduce the file size and you can afford to lose the quality or resolution, try <a href="/resize">PDF resizer</a>
                            instead.
PDF files can be created in many different ways, they can consist of images, text and formatting information in any proportion, so the results from using our optimization and resizing tools may vary heavily from one file to another.
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